G = {(1, 1), (1, 2), (1, 3), (1, 4)} Is G a function and why?

is not function. The reason is that it is not one-to-one.

Step-by-step explanation:

A function is a mapping that is also one-to-one.

is indeed a mapping; it takes an input and relates it to one or more outputs.

A mapping is one-to-one if and only if each input is mapped to only one output. is not one-to-one because it maps the input to four different outputs. Hence, isn't a function.

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step-by-step explanation:

step-by-step explanation:

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